Advantages & Disadvantages of Biological Control

Updated on June 14, 2017
Can biological control really help get rid of those pesky pests?
Can biological control really help get rid of those pesky pests? | Source

Whether they be insects, weeds, or otherwise, pests are annoying. Even more than that, they can devastate the world's ecosystems and agriculture by disrupting the fragile balance sustained by the natural diversity (or intended lack thereof) of organisms. So how do we control all these pests? Why, biologically of course! Biological control is the use of a pest's natural predators in controlling their populations in order to minimize their impact on economic and environmental practices. It's an alternative to pesticides and poisons that can offer a few distinct advantages, as well as disadvantages.

Advantages of Biological Control:

  1. Biological control is a very specific strategy. The vast majority of the time, whatever predator is introduced will only control the population of the pest they are meant to target, making it a green alternative to chemical or mechanical control methods. For example, whereas weed killing chemicals can also destroy fruit-bearing plants, biological control allows the fruit to be left uninterrupted while the weeds are destroyed.
  2. Natural enemies introduced to the environment are capable of sustaining themselves, often by reducing whatever pest population they are supposed to manage. This means that after the initial introduction, very little effort is required to keep the system running fluidly. It also means that biological control can be kept in place for a much longer time than other methods of pest control.
  3. Biological control can be cost effective in the long run. Although it may cost a bit to introduce a new species to an environment, it's a tactic that only needs to be applied once due to its self-perpetuating nature.
  4. Most important of all, it's effective. Whatever pest population you want controlled will no doubt be controlled. Because the predator introduced will be naturally inclined to target the pests, very often you'll see the pest population dwindle.

Disadvantages of Biological Control:

  1. Biological control can be fickle. Ultimately, you can't control whatever natural enemy you set loose in an ecosystem. While it's supposed to manage one pest, there is always the possibility that your predator will switch to a different target - they might decide eating your crops instead of the insects infesting them is a better plan! Not only that, but in introducing a new species to an environment, there runs the risk of disrupting the natural food chain.
  2. It's a slow process. It takes a lot of time and patience for the biological agents to work their magic on a pest population, whereas other methods like pesticides work provide immediate results. The upside to this is the long-term effect biological control provides.
  3. If you're looking to completely wipe out a pest, biological control is not the right choice. Predators can only survive if there is something to eat, so destroying their food population would risk their own safety. Therefore, they can only reduce the number of harmful pests.
  4. While it is cheap in the long run, the process of actually setting up a biological control system is a costly endeavor. A lot of planning an money goes into developing a successful system.

Let's Recap:

Pros
Cons
Specific to a particular pest
Can sometimes fail in its specificity
Self-sustaining system
It's a slow process
Cheap after startup
Expensive at startup
It works most of the time
Doesn't completely destroy a pest

In the end, it's up to the person with the pest problem to determine whether the advantages of biological control outweigh its disadvantages!

© 2012 Btryon86

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    • profile image

      faggot 

      2 months ago

      Finally, a source i can completely trust without any hesitation to my safety or personal sexuality

    • profile image

      juv 

      3 months ago

      cool

    • profile image

      Nisith Ruwanpura 

      4 months ago

      Cool....Great information

    • profile image

      Brighton Bhova 

      7 months ago

      Great information...

      Big up to you guys...

    • profile image

      Hillary Lunn 

      8 months ago

      This is so cool. Swagwan my Big ting Gs fam

    • profile image

      tipdawg124 

      8 months ago

      i actually learnt something at school for once, thanks bruv

    • profile image

      tekalgn eshete 

      10 months ago

      i am so happy by your good notes

    • profile image

      Shamshery aj 

      10 months ago

      BIG UP

      It's good notes

    • profile image

      blessmore linda 

      10 months ago

      thats great

    • profile image

      Dermot O'Brien 

      10 months ago

      An excellent resource, clear straightforward and informative exactly what I required.

    • profile image

      Nicole 

      11 months ago

      Thanx for the answers

    • profile image

      Kieran Collins the Dickhead 

      12 months ago

      It's a good, simple list of what I was looking for.

    • profile image

      juniel busiguit 

      12 months ago

      thank you for this i learn some, and now i have more idea to my report...

    • profile image

      GABRIEL CHUAH 

      14 months ago

      Thanks for the the info!! It helps me a lot on completing my science report.

    • profile image

      Luke Tokar 

      14 months ago

      really good information i absolutely got what i was looking for!

    • profile image

      donia 

      18 months ago

      great

    • profile image

      shaikh nadeen 

      21 months ago

      This site is very use full, thanks too all who work in this site

    • profile image

      in 

      2 years ago

      thanks

    • profile image

      alonso.tan.581@facebook.com 

      2 years ago

      Nice!!

    • profile image

      dickson 

      2 years ago

      this helped alot thanks for the article :)

    • profile image

      kirito 

      2 years ago

      thx for helping

      i really needed it

    • profile image

      KittyCatLover 

      2 years ago

      Wow! The language used is simple and easy to understand. Besides that,the points are presented and elaborated well by paragraphs. Examples are also given. I found exactly what I searched for. I really like this article. Keep up the great work!

    • profile image

      ellis2112 

      2 years ago

      This ways very helpful, and I am new to this site, Keep Up The Good Work!

    • profile image

      famobio97 

      2 years ago

      Very useful. Thumbs up.first timer though

    • profile image

      Ayraaaf_#11 

      3 years ago

      very nice and interesting

    • profile image

      nelio 

      3 years ago

      First time to visit your site, twas very informative! I found this article fair and comprehensive. Looking forward to reading other worthy articles . . . SALAMAT PO!!!

    • profile image

      Ivan 

      4 years ago

      Nice one btryon.... Just got what I was looking for... Thanks

    • profile image

      natsya 

      4 years ago

      thank you for the information =)

    • profile image

      Louis mce 

      4 years ago

      Sick website

    • profile image

      Megan Sharp 

      4 years ago

      Your website was awesome! Pest busters!

    • profile image

      Awesome Ashaarya 

      4 years ago

      really good information... Tqvm. XD

      AA

    • shara63 profile image

      Farhat 

      6 years ago from Delhi

      very informative hub.. an acceptable, safe solution to pest control and so an amazing way to maintain our ecosystem too!

    • profile image

      KDuBarry03 

      6 years ago

      Huh, very informative and a good option for pest control. Well done, once again, Btyron!

    • mwilliams66 profile image

      mwilliams66 

      6 years ago from Left Coast, USA

      As always Btryon, I found your article very interesting.

      Voting up and interesting.

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